Do you still go to Twitter.com every time you want to tweet something? That, my friends, is one colossal waste of time (not to mention a hassle).
If you're a Firefox user, you can tweet right from your browser's address bar. All you need is the fiendishly clever TwitterBar add-on.
What's so fiendish about it? TwitterBar makes tweeting so easy, you'll probably end up doing a lot more of it--and, if I may gently remind you, no one cares what you had for breakfast today. Not even your mom.
Anyway, TwitterBar adds a "tweet" icon to the tail end of the Firefox address bar. Just type your update, then click the icon--or mouse over it to see how many characters you have left. (As with all tweets, you're limited to 140.)
If all you want to do is tweet the address of the site you're viewing, there's no typing required--just click the TwitterBar icon. Like I said: clever!
If there's a faster way to tweet, I haven't found it.